Surgical blade



FIG. 1 is a bottom view of a surgical blade;

FIG. 2 is a first side view thereof;

FIG. 3 a second side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a front view thereof; and,

FIG. 6 is a back view thereof. 

CLAIM The ornamental design for a surgical blade, as shown and described. 